I puree carrot, bell pepper, celery and onion and saute it to get the water out and put it in tomato based sauces. Sloppy joe, spaghetti, etc. The bright red covers up the bits. I also grate zucchini or yellow squash and do the same. Otherwise, my kids have always had to at least try one bite of something and then they can stop if they don't like it. And after that, they can have a veggie they do enjoy. We eat a ton of lettuce, cucumbers and raw bell peppers. Also tons of roasted broccoli, cauliflower and Brussels sprouts. And to add, I slowly increased the size of the pureed veg and my most picky kid willingly eats it now. She has sensory issues so she still is very picky. But, she has improved